Enforce and backtrack on invalid versions in source metadata #2954
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Summary
If we build a source distribution from the registry, and the version doesn't match that of the filename, we should error, just as we do for mismatched package names. However, we should also backtrack here, which we didn't previously.
Closes #2953.
Test Plan
Verified that
cargo run pip install docutils --verbose --no-cache --reinstall
installsdocutils==0.21
instead of the invaliddocutils==0.21.post1
.In the logs, I see: